MERCEDES EQC400 (2021)
Running costs, common problems, and reliability data based on 64 real MOT tests in 2024.
MOT Pass Rate
94%
Total Tests (2024)
64
Avg Mileage
44,097 mi
Est. Annual Cost
£945
Is the 2021 MERCEDES EQC400 reliable?
Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.
At 3 years old, 94% of MERCEDES EQC400s from 2021 passed their MOT first time in 2024. That's based on 64 tests across the UK. The average mileage at this age is 44,097 miles.
How does the 2021 MERCEDES EQC400 compare?
Mileage Analysis
The average 2021 MERCEDES EQC400 has 44,097 miles on the clock, which is well above the expected 22,200 miles for a 3-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.
How much does a 2021 MERCEDES EQC400 cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
Checking a specific MERCEDES EQC400?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 MERCEDES EQC400
The 2021 MERCEDES EQC400 is a electric with a 0cc electric engine. 64 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 44,097 miles at 3 years old, MERCEDES EQC400 owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
What does it cost to own a 2021 MERCEDES EQC400?
Total estimated annual running cost is £945 (£79/month), broken down as £500 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2021 MERCEDES EQC400
At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet. Note: with only 64 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2021 MERCEDES EQC400
If reliability is your priority, there's one similar car with a higher MOT pass rate. Here are comparable electric cars with similar engines:
- TESLA MODEL 3 LONG RANGE AWD (2021) 88% pass rate (-6%) from 39,444 tests
- JAGUAR I-PACE (2020) 96% pass rate (+2%) from 18,488 tests
- TESLA MODEL 3 STANDARD RANGE + (2021) 88% pass rate (-6%) from 15,258 tests
- TESLA MODEL 3 PERFORMANCE AWD (2020) 87% pass rate (-7%) from 12,320 tests